Reviewed, UniProtKB/Swiss-Prot Q10RK1 (EXP20_ORYSJ)

Names and origin

Protein names

Recommended name:
    Expansin-A20
Alternative name(s):
    OsEXPA20
    Alpha-expansin-20
    OsEXP20
    OsaEXPa1.1

Gene names

Name:	EXPA20
Synonyms:	EXP20
Ordered Locus Names:	Os03g0156300, LOC_Os03g06060
ORF Names:	OSJNBa0011L14.13

Organism

Oryza sativa subsp. japonica (Rice)

Taxonomic identifier

39947 [NCBI]

Taxonomic lineage

Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliophyta › Liliopsida › Poales › Poaceae › BEP clade › Ehrhartoideae › Oryzeae › Oryza

Protein attributes

Sequence length	240 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is further processed into a mature form.
Protein existence	Evidence at transcript level.

General annotation (Comments)

Function	May cause loosening and extension of plant cell walls by disrupting non-covalent bonding between cellulose microfibrils and matrix glucans. No enzymatic activity has been found. May be required for rapid internodal elongation in deepwater rice during submergence By similarity.
Subcellular location	Secreted › cell wall By similarity. Membrane; Peripheral membrane protein By similarity.
Sequence similarities	Belongs to the expansin family. Expansin A subfamily. Contains 1 expansin-like CBD domain. Contains 1 expansin-like EG45 domain.
Sequence caution	The sequence AAM51839.1 differs from that shown. Reason: Erroneous gene model prediction.

Ontologies

Keywords
Biological process	Cell wall biogenesis/degradation
Cellular component	Cell wall Membrane Secreted
Domain	Signal
PTM	Glycoprotein
Gene Ontology (GO)
Biological process	plant-type cell wall organization Inferred from electronic annotation. Source: InterPro
Cellular component	cell wall Inferred from electronic annotation. Source: UniProtKB-SubCell extracellular region Inferred from electronic annotation. Source: UniProtKB-KW extrinsic to membrane Inferred from electronic annotation. Source: UniProtKB-SubCell
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Signal peptide	1 – 21	21	Potential
	Chain	22 – 240	219	Expansin-A20		PRO_0000251999
Regions
	Domain	41 – 145	105	Expansin-like EG45
	Domain	155 – 234	80	Expansin-like CBD
Amino acid modifications
	Glycosylation	107	1	N-linked (GlcNAc...) Potential
	Glycosylation	207	1	N-linked (GlcNAc...) Potential
Experimental info
	Sequence conflict	165	1	A → P in AAL24491. Ref.1
	Sequence conflict	165	1	A → P in AAY63552. Ref.2

Sequences

	Sequence		Length	Mass (Da)
	Q10RK1-1 [UniParc]. Last modified August 22, 2006. Version 1. Checksum: 3C17A2468F8F0ECF	FASTA	240	25,789
	10 20 30 40 50 60 MGNILLQLLA VVALCIAPAR SDWLPGTATF YGGADGSGTM GGACGYGNLY DQRYGINNAA 70 80 90 100 110 120 LSTPLFNDGA SCGQCYLIIC DYGKAPDWCK LGKAITVTGT NYGGWCNATR PYFDMSQPAW 130 140 150 160 170 180 ENIGIYSAGI VPILYQQVKC WRYGGVRFII NGFNYFELVL VTNMAGSGSI VSMSVKGSCT 190 200 210 220 230 240 GWIQMTRNWG ANWQCLAGLA GQALSFNVTS TGGQTIVFDD AVPAGWSFGQ TFSTYHQFDY

References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	"Expression of alpha-expansin and expansin-like genes in deepwater rice." Lee Y., Kende H. Plant Physiol. 130:1396-1405(2002) [PubMed: 12428004] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
[2]	"Characterization and transcriptional expression of the alpha-expansin gene family in rice." Shin J.-H., Jeong D.-H., Park M.C., An G. Mol. Cells 20:210-218(2005) [PubMed: 16267395] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. Strain: cv. Dongjin.
[3]	"Sequence, annotation, and analysis of synteny between rice chromosome 3 and diverged grass species." The rice chromosome 3 sequencing consortium Buell C.R., Yuan Q., Ouyang S., Liu J., Zhu W., Wang A., Maiti R., Haas B., Wortman J., Pertea M., Jones K.M., Kim M., Overton L., Tsitrin T., Fadrosh D., Bera J., Weaver B., Jin S. , Johri S., Reardon M., Webb K., Hill J., Moffat K., Tallon L., Van Aken S., Lewis M., Utterback T., Feldblyum T., Zismann V., Iobst S., Hsiao J., de Vazeille A.R., Salzberg S.L., White O., Fraser C.M., Yu Y., Kim H., Rambo T., Currie J., Collura K., Kernodle-Thompson S., Wei F., Kudrna K., Ammiraju J.S.S., Luo M., Goicoechea J.L., Wing R.A., Henry D., Oates R., Palmer M., Pries G., Saski C., Simmons J., Soderlund C., Nelson W., de la Bastide M., Spiegel L., Nascimento L., Huang E., Preston R., Zutavern T., Palmer L., O'Shaughnessy A., Dike S., McCombie W.R., Minx P., Cordum H., Wilson R., Jin W., Lee H.R., Jiang J., Jackson S. Genome Res. 15:1284-1291(2005) [PubMed: 16109971] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: cv. Nipponbare.
[4]	"Nomenclature for members of the expansin superfamily of genes and proteins." Kende H., Bradford K.J., Brummell D.A., Cho H.-T., Cosgrove D.J., Fleming A.J., Gehring C., Lee Y., McQueen-Mason S.J., Rose J.K.C., Voesenek L.A.C. Plant Mol. Biol. 55:311-314(2004) [PubMed: 15604683] [Abstract] Cited for: NOMENCLATURE.

Web resources

EXPANSIN homepage

Cross-references

Sequence databases
EMBL GenBank DDBJ	AF394555 Genomic DNA. Translation: AAL24491.1. DQ061061 mRNA. Translation: AAY63552.1. AC105730 Genomic DNA. Translation: AAM51839.1. Sequence problems. DP000009 Genomic DNA. Translation: ABF94057.1.
RefSeq	NP_001049008.1.
UniGene	Os.79059
3D structure databases
SMR	Q10RK1. Positions 18-238.
ModBase	Search...
Genome annotation databases
GeneID	4331668.
KEGG	osa:4331668.
Organism-specific databases
Gramene	Q4PR46.
Family and domain databases
InterPro	IPR009009. Barwin-related_endoglucanase. IPR007112. Expan_endogl. IPR007118. Expan_Lol_pI. IPR007117. Expan_Lol_pI_C. IPR002963. Expansin. IPR014734. Pollen_allergen. IPR005132. RlpA. [Graphical view]
Gene3D	G3DSA:2.60.40.760. Expan_Lol_pI_C. 1 hit. G3DSA:2.40.40.40. Pollen_allergen. 1 hit.
Pfam	PF03330. DPBB_1. 1 hit. PF01357. Pollen_allerg_1. 1 hit. [Graphical view]
PRINTS	PR01226. EXPANSIN. PR01225. EXPANSNFAMLY.
PROSITE	PS50843. EXPANSIN_CBD. 1 hit. PS50842. EXPANSIN_EG45. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

EXP20_ORYSJ

Accession

Primary (citable) accession number: Q10RK1
Secondary accession number(s): Q4PR46, Q8LMP8, Q946I2

Entry history

Integrated into UniProtKB/Swiss-Prot:	October 3, 2006
Last sequence update:	August 22, 2006
Last modified:	January 19, 2010
This is version 26 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

PPAP (Plant Proteome Annotation Project)